Low: gdb security update

Topic

An update for gdb is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The GNU Debugger (GDB) allows users to debug programs written in various programming languages including C, C++, and Fortran.

Security Fix(es):

• libiberty: Heap/stack buffer overflow in the dlang_lname function in d-demangle.c (CVE-2021-3826)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.3 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 9 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64

Fixes

• BZ - 2122627 - CVE-2021-3826 libiberty: Heap/stack buffer overflow in the dlang_lname function in d-demangle.c
• BZ - 2130624 - ../../gdb/jit.c:1278: internal-error: void jit_event_handler(gdbarch*, objfile*): Assertion `jiter->jiter_data != nullptr' failed.

CVEs

• CVE-2021-3826

References

• https://access.redhat.com/security/updates/classification/#low
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.3_release_notes/index